text: let img1=document.getElementById("first");
  let img2=document.getElementById("second");
  let btn1=document.getElementById("clicked1");
  let btn2=document.getElementById("clicked2");
  let img=document.querySelector("img");
  let no1=document.getElementById("no1");
  let no2=document.getElementById("no2");
  
  let current=1;
  let no=6;
  function click_btn_1(){
      if(current===1){
          current++;
          img.src="img-"+current+".jpg";
          img1.style.color="#b7b7a4";
          no1.innerText="01";
          no2.innerText="02";
          img2.style.color="#ffb703"
      }else if(current !== no){
          current++;
          img.src="img-"+current+".jpg";
          no1.innerText="0"+(current-1);
          no2.innerText="0"+current;
      }else{
          img.src="img-1.jpg";
          current=1;
          no1.innerText="01";
          no2.innerText="02";
          img1.style.color="#ffb703";
          img2.style.color="#b7b7a4"
      }
  }
  function click_btn_2(){
        if(current===1){
          current=no;
          img.src="img-"+current+".jpg";
          img1.style.color="#b7b7a4";
          img2.style.color="#ffb703";
          no1.innerText="0"+(current-1);
          no2.innerText="0"+current;
      }else if(current !== 2){
          current--;
          img.src="img-"+current+".jpg";
          no1.innerText="0"+(current-1);
          no2.innerText="0"+current;
      }else{
          current--;
          img.src="img-"+current+".jpg";
          no1.innerText="0"+(current);
          no2.innerText="0"+(current+1);
          img1.style.color="#ffb703";
          img2.style.color="#b7b7a4"
      }
  }
  btn1.addEventListener("click",click_btn_1);
  btn2.addEventListener("click",click_btn_2);